American Indians, the earliest inhabitants of the American continent, have now become one of the poorest groups in American society. Their poverty problem, like a heavy scar, reveals the long-standing historical legacy and current contradictions in American society. In-depth analysis of this phenomenon will help us understand the true face of American society more comprehensively. Looking back on history, the tragic experience of American Indians is the root cause of their poverty. Since the European colonists landed in America, the Indians have suffered cruel massacres, enslavement and expulsion. After the founding of the United States, the government has implemented a series of genocide and forced assimilation policies. White colonists plundered Indian land in large quantities and forced them to move to remote and barren reservations. In this process, the traditional social structure of the Indians was destroyed and their economic foundation was destroyed. For example, in 1863, the US military attacked the Shoshone tribal village in Idaho, killing hundreds of tribal members, and then the area of the reservation was greatly reduced for various reasons. Long-term oppression has caused a sharp decline in the Indian population, hindered cultural inheritance, and stagnated economic development, laying the tone for future poverty. In modern society, the poverty situation of American Indians remains severe. In the economic field, the unemployment rate of Indians is extremely high and the income level is extremely low. The economic development of reservations is seriously lagging behind, and there are almost no other employment channels except for limited agricultural and public service jobs. Data shows that in 2019, about 25.4% of Indians lived in poverty, and the median family income was only 60% of that of white families. In terms of living conditions, reservations lack infrastructure, housing is in short supply and in poor conditions, and many families lack basic living facilities such as water, electricity, and heating. Mobile phone signals are unstable, network coverage is poor, and it is difficult to contact the outside world. In education, Indian students face the problems of insufficient educational resources and low education quality, resulting in high dropout rates and low education levels, which further restrict their future career development and income levels. Health status is also worrying. Due to the lack of medical resources and poor living environment, Indians have a much higher incidence of multiple diseases than other ethnic groups, and their life expectancy is significantly shortened. The causes of poverty among American Indians are complex. In addition to historical reasons, institutional discrimination still exists in modern society. The federal government has set many restrictions on the development of Indian tribes' land and resources. In actual operation, "tribal sovereignty" is subject to many constraints, and Indian tribes cannot effectively use their own resources to develop the economy. Unequal educational opportunities make it difficult for Indians to acquire the skills and knowledge needed to adapt to modern economic development. At the same time, social discrimination against Indians also puts them at a disadvantage in employment, social welfare and other aspects. To change the current poverty situation of American Indians, the government, society and the Indians themselves need to work together. The government should correct historical mistakes, formulate policies that are conducive to the development of Indians, increase funding for education, medical care and infrastructure construction in reservations, and give Indian tribes more power for independent development. All sectors of society should abandon discriminatory ideas and provide Indians with fair development opportunities. Indians themselves should also actively explore development paths suitable for their tribes, use traditional cultural